dongyin2390 2019-07-24 16:23
浏览 55
已采纳

从另一个函数调用init函数

why i can't call init function from the other function, init() is just function right, why i can't just call the init function, should i change golang RFC to make it happend

package main

import (
    "fmt"
)

func init() {
    fmt.Println("Hello, playground")
}

func main() {
    go init()
    fmt.Println("Hello, playground")
}

error :

./prog.go:12:8: undefined: init
  • 写回答

2条回答 默认 最新

  • dongsi1954 2019-07-24 16:28
    关注

    The Go Programming Language Specification

    Package initialization

    the init identifier can be used only to declare init functions, yet the identifier itself is not declared. Thus init functions cannot be referred to from anywhere in a program.


    To accomplish your objective, call a function.

    For example,

    package main
    
    import (
        "fmt"
    )
    
    func init() {
        f("init")
    }
    
    func f(s string) {
        fmt.Printf("f(%q)
    ", s)
    }
    
    func main() {
        f("main")
    }
    

    Playground: https://play.golang.org/p/isyrCIeYCV4

    Output:

    f("init")
    f("main")
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论
查看更多回答(1条)

报告相同问题?